# US 9,427,267 B2 · Method for tibial nail insertion > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,427,267 B2 - Document ID: US9427267B2 - Status: Granted - Kind: B2 - Application number: 14/546,404 - Filed: 2014-11-18 - Published: 2015-03-12 - Granted: 2016-08-30 - Earliest claimed: 2011-09-16 - Assignees: Stryker European Holdings I, LLC - Applicants: Stryker European Holdings I, LLC - Inventors: Annika Homeier; Ilan Howling; Nils Zander; Lothar Kühne; Claudia Graca - Web page: https://patentgrep.com/patent/US9427267B2 ## CPC - A61B 17/725: {with locking pins or screws of special form} - A61B 17/56: Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor - A61B 17/72: Intramedullary devices, e.g. pins or nails - A61B 2017/564: {Methods for bone or joint treatment} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A method for implanting a longitudinal intramedullary nail into the tibia comprises inserting the tibia nail along a plane of symmetry through the tuberositas tibiae. Thereby, the tuberositas tibiae can be used during nail insertion to correctly align the nail and the target arm to the symmetry plane of the bone. This means, that the whole construct, the nail attached to the target arm, has to be inserted in external rotation. ## Claims ### Claim 1 A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises: providing a longitudinal intramedullary nail having a section with a curvature, which curvature has a predetermined radius; identifying a sagittal plane of the tibia; aligning the intramedullary nail, such that the radius of the intramedullary nail lies in the sagittal plane, externally rotating the intramedullary nail until the intramedullary nail is inclined by an angle between 13° to 37° with respect to the sagittal plane of the tibia; and inserting the intramedullary nail into a marrow channel of the tibia. ### Claim 2 (depends on 1) The method of claim 1, wherein the inclined angle is between 17° and 33°. ### Claim 3 (depends on 1) The method of claim 1, wherein the inclined angle is between 21° and 26°. ### Claim 4 (depends on 1) The method of claim 1, wherein the inclined angle is about 24°. ### Claim 5 (depends on 1) The method of claim 1, wherein the curvature of the intramedullary nail section corresponds to a radius of curvature of a marrow channel of the tibia into which the intramedullary nail is to be inserted. ### Claim 6 (depends on 5) The method of claim 5, wherein the radius of curvature is between 2000 mm and 3000 mm. ### Claim 7 (depends on 6) The method of claim 6, wherein the radius of curvature is between 2400 mm and 2600 mm. ### Claim 8 (depends on 7) The method of claim 7, wherein the radius of curvature is about 2500 mm. ### Claim 9 (depends on 1) The method of claim 1, further comprising placing screws through a proximal portion of the intramedullary nail and into a tibia plateau of a tibia after the intramedullary nail is inserted. ### Claim 10 A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises: providing a longitudinally extending intramedullary nail having a section with a curvature, which curvature has a predetermined radius of curvature lying along a plane containing the longitudinal axis of the nail; identifying a sagittal plane through a tibia; aligning the intramedullary nail prior to insertion, such that the plane containing the radius of the intramedullary nail section lies in the sagittal plane; externally rotating the intramedullary nail until the plane containing the nail radius is coplanar with a plane through a tuberositas tibiae of the tibia; and thereafter, inserting the intramedullary nail into a marrow channel of the tibia through an entry point lying on the plane through the tuberositas tibiae. ### Claim 11 (depends on 10) The method as set for in claim 10 wherein the external rotation is between 13° and 37° with respect to the sagittal plane. ### Claim 12 (depends on 11) The method of claim 11, wherein the external rotation is between 17° and 33° with respect to the sagittal plane. ### Claim 13 (depends on 12) The method of claim 12, wherein the external rotation is between 21° and 26° with respect to the sagittal plane. ### Claim 14 (depends on 13) The method of claim 13, wherein the external rotation is about 24° with respect to the sagittal plane. ### Claim 15 (depends on 10) The method of claim 10, wherein the curvature of the intramedullary nail section corresponds to a radius of curvature of a marrow channel of the tibia into which the intramedullary nail is to be inserted. ### Claim 16 (depends on 15) The method of claim 15, wherein the radius of curvature is between 2000 mm and 3000 mm. ### Claim 17 (depends on 16) The method of claim 16, wherein the radius of curvature is between 2400 mm and 2600 mm. ### Claim 18 (depends on 17) The method of claim 17, wherein the radius of curvature is about 2500 mm. ### Claim 19 (depends on 10) The method of claim 10, further comprising placing screws through a proximal portion of the intramedullary nail and into a tibia plateau of a tibia after the intramedullary nail is inserted. ### Claim 20 A method for implanting a longitudinal intramedullary nail into the tibia, the method comprises: providing a longitudinally extending intramedullary nail having a section with a curvature lying in a plane, which curvature has a predetermined radius measured from a center lying in the plane; identifying a sagittal plane of the tibia; aligning the intramedullary nail, such that the plane containing the radius of curvature of the intramedullary nail lies in the sagittal plane; externally rotating the intramedullary nail until the plane of the intramedullary nail containing the radius is inclined by an angle between 13° to 37° with respect to the sagittal plane of the tibia; and inserting the intramedullary nail into a marrow channel of the tibia.